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Why Scientists Shouldn't Replicate Their Own Work

Last week, I wrote about a social psychology paper which was retracted after the data turned out to be fraudulent. The sole author on that paper, William Hart, blamed an unnamed graduate student for the misconduct.

Now, more details have emerged about the case. On Tuesday, psychologist Rolf Zwaan blogged about how he was the one who first discovered a problem with Hart’s data, in relation to a different paper. Back in 2015, Zwaan had co-authored a paper reporting a failure to replicate a 2011